DATA TECHNOLOGY CORPORATION
DTC2278S
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| Data bus: | 32-bit VL-Bus | 
| Size: | Three/quarter-length, half-height card | 
| Hard drive supported: | Two IDE(AT) interface drives | 
| Floppy drives supported: | Two 360KB, 720KB, 1.2MB, 1.44MB drives | 
 
| CONNECTIONS | |
| Function | Location | 
| 10-pin serial port 2 - internal | J2 | 
| 9-pin serial port 1 - external (via ribbon cable) | J3 | 
| 16-pin game port | J4 | 
| 34-pin cable connector - floppy drive | J5 | 
| 40-pin connector - secondary IDE(AT) interface | J6 | 
| 40-pin connector - primary IDE(AT) interface | J7 | 
| 4-pin connector - drive active LED | J8 | 
| 25-pin parallel port - external | J9 | 
| USER CONFIGURABLE SETTINGS | |||
| Function | Location | Setting | |
| » | Floppy drive interface enabled | W7 | pins 2 & 3 closed | 
| Floppy drive interface disabled | W7 | pins 1 & 2 closed | |
| » | Game port enabled | W8 | closed | 
| Game port disabled | W8 | open | |
| » | Parallel port is uni-directional | W17 | closed | 
| Parallel port is bi-directional | W17 | open | |
| PARALLEL PORT ADDRESS SELECTION | |||
| LPT | W1 | W2 | |
| » | LPT1 (378h) | pins 2 & 3 closed | pins 1 & 2 closed | 
| LPT2 (278h) | pins 1 & 2 closed | pins 2 & 3 closed | |
| LPT3 (3BCh) | pins 2 & 3 closed | pins 2 & 3 closed | |
| Disabled | pins 1 & 2 closed | pins 1 & 2 closed | |
| SERIAL PORT 1 ADDRESS SELECTION | |||
| COM | W5 | W6 | |
| » | COM1 (3F8h) | pins 1 & 2 closed | pins 2 & 3 closed | 
| COM3 (3E8h) | pins 2 & 3 closed | pins 1 & 2 closed | |
| COM4 (2E8h) | pins 2 & 3 closed | pins 2 & 3 closed | |
| Disabled | pins 1 & 2 closed | pins 1 & 2 closed | |
| SERIAL PORT 2 ADDRESS SELECTION | |||
| COM | W3 | W4 | |
| » | COM2 (2F8h) | pins 1 & 2 closed | pins 2 & 3 closed | 
| COM3 (3E8h) | pins 2 & 3 closed | pins 2 & 3 closed | |
| COM4 (2E8h) | pins 2 & 3 closed | pins 1 & 2 closed | |
| Disabled | pins 1 & 2 closed | pins 1 & 2 closed | |
| PARALLEL PORT INTERRUPT | |||
| IRQ | W9 | W10 | |
| » | IRQ7 | open | closed | 
| IRQ5 | closed | open | |
| SERIAL PORT 1 INTERRUPT SELECT | ||||
| IRQ | W14 | W15 | W16 | |
| » | IRQ4 | open | open | closed | 
| IRQ3 | open | closed | open | |
| IRQ5 | closed | open | open | |
| SERIAL PORT 2 INTERRUPT SELECT | ||||
| IRQ | W11 | W12 | W13 | |
| » | IRQ3 | open | open | closed | 
| IRQ4 | open | closed | open | |
| IRQ5 | closed | open | open | |